How Do Pandrol Clips Work?

Pandrol clips work as self-tensioning, spring-steel fasteners that securely clamp rails to sleepers (ties) using elastic force, gripping tighter under the dynamic forces of passing trains to prevent rail movement (creep) while allowing for slight thermal expansion, ensuring continuous elastic fastening for high-speed and heavy-haul tracks. They slide into a baseplate socket, and their unique shape creates a strong, consistent clamping pressure, essential for safety and track stability.

How they function:

• Elasticity: Made from spring steel, the clips naturally want to return to their original shape, providing constant pressure.

• Self-Tensioning: When a train passes, the clip deflects slightly, but its inherent springiness grips the rail even harder, maintaining tension.

• Installation: They are inserted into lugs on a baseplate attached to the sleeper; the clip's end locks onto the rail's foot.

• Creep Resistance: This design significantly reduces the tendency of rails to move longitudinally (creep).

• Versatility: Different types (like E-clips, Fastclips) suit various applications, from ballasted to slab tracks, controlling rail sway and vibration.

Key benefits:

• Constant Clamping: Eliminates the need for frequent retensioning.

• Durability: Protects against thermal forces and dynamic loads, extending track life.

• Ease of Use: Especially modern systems like Fastclip allow for quick, mechanical installation.

What does GNEE RAIL use to inspect the finished rail clips?

• Brinell Hardness Tester
• Carbon and Sulfur Analyzer
• Rockwell Hardness Machine to test metallic materials
• Automatic Impact Testing Machine
• Metallographic Microscope
• Automatic High-speed Analyzer
• Fatigue Testing Machine
• Metallographic Specimen Polishing Machine
• Metallographic Specimen Pointing Machine

As an OEM & OBM manufacturer, GNEE RAIL is capable of not only producing a wide range of internationally common types of rail clips, such as W Tension Clamp, e-Clip, Fast-Clip, SKL Tension Clamp, Nabla Blade, etc., but also customizing products tailored to our customers' specific requirements.

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